Name: Marine Medium Speed Engine Oil 4030# for Marine Diesel Engines
Brand: YUANGEN
SKU: 4030
Availability: InStock

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Marine Medium Speed Engine Oil 4030# for Marine Diesel Engines

Product Description

Marine Medium Speed Engine Oil 4030# is formulated with high-quality paraffin-based mineral base oil and selected high-performance additives. It is specifically designed for marine medium-speed diesel engines, providing reliable lubrication for key components such as bearings, camshafts, gears, piston rings, cylinder liners, and valve mechanisms, while also assisting in piston cooling.

• Packaging: 18L, 200L

• Customized packaging available upon request.

Marine Medium Speed Engine Oil 4030# for Marine Diesel Engines

Specifications and Approvals

• GB∕T38049-2019

Performance Benefits of Marine Medium Speed Engine Oil 4030#

• Excellent base value retention

Neutralizes acidic by-products from high-sulfur fuel combustion (2.5–3.5%), preventing corrosion and extending engine life.
• trong anti-corrosion and rust protection

rotects engine components from rusting and chemical corrosion in harsh marine environments.
• Superior oxidation stability

Reduces oil oxidation rate, inhibits sludge formation, and extends oil service life.
• Outstanding cleanliness and dispersancy

Prevents high-temperature carbon deposits and keeps engine components clean.
• Excellent water separation performance

Quickly separates water contamination, preventing emulsification and maintaining lubrication efficiency.

Applications of Marine Medium Speed Engine Oil 4030#

Applications

Marine Medium Speed Engine Oil 4030# is suitable for medium-speed marine diesel engines with trunk piston design operating on fuel with sulfur content of approximately 2.5–3.5%.
It is also suitable for high-speed auxiliary marine engines, providing stable lubrication and protection under demanding marine operating conditions.

FAQ

What is Marine Medium Speed Engine Oil 4030# used for?

It is used for lubricating medium-speed marine diesel engines, especially trunk piston engines operating with high-sulfur fuel.

What does “4030#” mean in marine engine oil?

4030# typically refers to viscosity grade and base number, indicating suitability for medium-speed engines requiring strong acid neutralization performance.

Is this oil suitable for high-sulfur fuel engines?

Yes, it provides excellent base value retention to neutralize acids formed during combustion of fuels with 2.5–3.5% sulfur content.

Can it be used in auxiliary engines?

Yes, it is suitable for both main medium-speed engines and high-speed auxiliary engines.

Do you offer bulk supply or OEM services?

Yes, we provide bulk supply, OEM/private label solutions, and technical support for marine lubrication applications worldwide.

Looking for a Reliable Marine Engine Oil Supplier?

YUANGEN Petrochemical supplies high-performance marine diesel engine oils for global distributors, ship operators, and industrial clients.

✔ Stable bulk supply with consistent quality
✔ OEM / Private Label marine lubricants
✔ Fast international delivery
✔ Professional marine lubrication technical support

Contact us today to request a quotation and technical consultation.

Get detailed product specifications and have our technical experts confirm whether this formulation is suitable for your equipment.

ACCESS PRODUCT DATA

Typical Test Data

Test Item	Result	Method
Kinematic Viscosity (100℃), mm²/s	14.8	GB/T265
Kinematic Viscosity (40℃), mm²/s	148.5	GB/T265
Viscosity Index	99	GB/T2541
Pour Point, ℃	-21	GB/T3535
Flash Point (COC), ℃	242	GB/T3536
Base Value, mgKOH/g	31.5	SH/T0251

Health, Safety & Environment

The product is unlikely to present any significant health or safety hazard when properly used in the recommended application, and good standards of personal hygiene are maintained.
Avoid contact with skin. Use impervious gloves with used oil. After skin contact, wash immediately with soap and water.
Take used oil to an authorised collection point. Do not discharge into drains, soil or water.

Storage

All packages should be stored under cover. Where outside storage is unavoidable, drums should be laid horizontally to avoid the possible ingress of water and damage to drum markings. Products should not be stored above 60°C, exposed to direct sunlight or freezing conditions.

The indicated properties are typical of those obtained with normal production tolerance and do not constitute a specification. All the information contained in this document is considered accurate as of date of printing, and no warranty or representation, expressed or implied is made as to the accuracy of the data and information in this publication. The information contained herein is subject to change without notice.

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For data security, YUANGEN does not disclose detailed product information on this website. Please briefly describe your equipment and application, and our technical team will review your request, provide accurate product specifications, and offer guidance on equipment compatibility.

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